Pope begins his U.S. tour with a call to action

President Barack Obama talks with Pope Francis in the Oval Office of the White House in Washington, Wednesday, Sept. 23, 2015. (Tony Gentile/Pool Photo via AP)

President Barack Obama talks with Pope Francis in the Oval Office...

WASHINGTON — Welcomed with a fanfare of trumpets and a chorus of amens, Pope Francis introduced himself to the United States on Wednesday with a bracing message on climate change, immigration and poverty that ranged from the pastoral to the political.

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